Basics of Railroad Wheels


Objectives: Recognize wheel types, reasons for the differences, how to distinguish and classify wheels by size, material, manufacturing method and rim thickness. Learn the basics of wheel inspection including use of inspection gauges per AAR Rule 41. Gain an understanding of the history of development of railroad wheels. Familiarize yourself with AAR Why Made Codes, wheels intended for freight and passenger service, wheel manufacturer identification codes, and obsolete wheels.

Audience: Railroad Mechanical Department Supervisors, inspectors, craftsmen and other railroad employees involved in the safe and proper maintenance of wheels.

View Lesson Information

Lesson IDLesson Title
LSRW1BHistory and Types of Wheels
LSRW2BWheel manufacturing and markings
LSRW3BWheel inspection and defects
LSRW4BWheel defects

Please note that prices do not reflect company discounts. If you have already received a copy of the reference material due to having enrolled in other lessons in this course, you will not be charged for or sent a second copy.

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